Sew a row of multicoloured pom-poms down the opening of a hand-knit baby sweater. Decorate the ends of a scarf with large fluffy yarn balls. Add the traditional single large pom-pom to the very top of a knit hat or sew tiny multicoloured pom-poms all over the hat for a confetti effect. Commercial plastic pom-pom makers make nice, round pom-poms that require very little trimming. There are two styles, a flat one with one hinge and a more elaborate, thicker one with two hinges.
Open the hinge or hinges of the pom-pom maker to separate its two halves.
Wrap yarn smoothly around each of the two C-shaped arms until they are full. This will be three or four layers of yarn.
Close the hinge or hinges so that the two C shapes form a circle.
If you have a flat pom-pom maker with one hinge, thread a needle with yarn and run it under the yarn along the inside edge of the plastic circle, all the way around the circle. Tie the yarn together tightly.
Cut the yarn all the way around the outside edge of the circle. The two-hinged variety of pom-pom maker has a indentation you stick the point of your scissors into. If you have already tied your pom-pom, you can pull it out at this point. If the yarn seems loose, tighten the knot first.
Tie a piece of yarn tightly around the middle of the bundle of yarn in the pom-pom maker, if you have not already done so, then open the plastic and remove the pom-pom.
Fluff the pom-pom with your fingers and trim off any yarn that sticks out beyond the surface of the ball.